CN106181575B - A kind of heavy duty high-speed electric main shaft on-line loaded platform and its application method - Google Patents
A kind of heavy duty high-speed electric main shaft on-line loaded platform and its application method Download PDFInfo
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- CN106181575B CN106181575B CN201510218556.2A CN201510218556A CN106181575B CN 106181575 B CN106181575 B CN 106181575B CN 201510218556 A CN201510218556 A CN 201510218556A CN 106181575 B CN106181575 B CN 106181575B
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- 230000001050 lubricating Effects 0.000 claims abstract description 14
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 230000027455 binding Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The invention discloses a kind of heavily loaded high-speed electric main shaft on-line loaded platform and its application method, which includes heavily loaded high-speed electric main shaft connection structure, heavily loaded high-speed electric main shaft axially and radially load-regulation structure, weighted platform bearing oil gas lubricating system；Have load value and obtains function and weighted platform temperature protection function online；When work, weighted platform is connect by connecting shaft and connection handle of a knife with tested electro spindle, adjusts electro spindle load by load regulator, load force is directly read by force plate/platform；Weighted platform is equipped with oil gas lubricating system and temperature monitoring system, it is ensured that weighted platform long-time safe operation under heavily loaded high speed.The present invention is suitable for heavy load, high-revolving electro spindle stability test and parameter adjustment, easy to use, reliable.
Description
Technical field
The invention belongs to electro spindle load test fields, more particularly, to a kind of heavily loaded high-speed electric main shaft on-line loaded
Platform.
Background technology
Heavily loaded high-speed electric main shaft is a classification under high-speed electric main shaft, is mainly used for the heavy type gold of large torque, heavy cut
Belong to machining tool.Heavily loaded high-speed electric main shaft does not need the intermediate transfers link such as gearbox or belt pulley, has structural module journey
The advantage that degree is high, rigidity is high.Heavily loaded high-speed electric main shaft actual speed usually in 6000RPM hereinafter, still bearing pitch radius compared with
Greatly, the D of axis systemmN values can reach the definition of high-speed electric main shaft, thus be referred to as heavily loaded high-speed electric main shaft.
Heavily loaded high-speed main spindle has larger shaft diameter and is equipped with high-power built-in motor, thus heavily loaded in the process of running
Thermal deformation inside high-speed main spindle is big more than conventional high rate electro spindle, this causes heavily loaded high-speed spindle bearing failure rate very high.For
Cope with this problem, it is necessary to a kind of heavily loaded high-speed electric main shaft on-line loaded platform is built, it is main by online simulation heavy duty high speed electricity
The stability of heavily loaded high-speed electric main shaft is examined in the real work load of axis.
The cutting load and cutting power of heavily loaded high-speed electric main shaft are larger, are more than the non-contact load weighted platform of routine
(e.g., electromagnetic force loads) or dynamometer machine tolerance range, and design the non-contact load weighted platform and dynamometer machine of high load version
It is with high costs.Meanwhile there are serious heating problems under heavily loaded, high speed operating mode for conventional contact load weighted platform.
Invention content
It is online the purpose of the present invention is in view of the drawbacks of the prior art or Improvement requirement, providing a kind of heavily loaded high-speed electric main shaft
Weighted platform, and the heavy duty of simulation reality, the application method of high-speed working condition are provided for heavily loaded high-speed electric main shaft stability test,
To realize the stability test under heavily loaded high-speed electric main shaft real working condition.
Heavy duty high-speed electric main shaft on-line loaded platform provided by the present invention, including heavily loaded high-speed electric main shaft connection structure,
Heavily loaded high-speed electric main shaft axially and radially load-regulation structure, weighted platform bearing oil gas lubricating system；And has load value and exist
Line obtains function and weighted platform temperature protection function；Wherein,
Heavily loaded high-speed electric main shaft connection structure includes：Electro spindle handle of a knife interface, connection shaft, shaft bearing, shaft shell
And accuracy test frame, ensure that weighted platform is coaxially fastenedly connected with tested electro spindle by rigid connection, i.e. electro spindle handle of a knife
Interface and connection shaft are fastenedly connected with electro spindle；Connection shaft is connect with shaft shell by shaft bearing, and shaft bearing is adopted
It is installed with back-to-back mode, level pressure preloading spring is provided in shaft bearing；Shaft shell is secured by bolts in force plate/platform
On upper surface；Force plate/platform lower platform is secured by bolts on adjustment of load tablet；
Axially and radially load-regulation structure includes heavily loaded high-speed electric main shaft：Adjustment of load tablet, stage+module seat, radial direction
Load regulator and axial load adjusting apparatus；Adjustment of load tablet is placed on stage+module seat, is existed by holddown spring
The sliding in plane can also be carried out while keeping adjustment of load tablet and the contact surface of stage+module seat to be kept in contact；It is radial
Load regulator and axial load adjusting apparatus are separately mounted to four orientation in stage+module seat same plane；Described
Radial load adjusting apparatus and axial load adjusting apparatus have a pair or more respectively.
Further, setting is provided with bearing lubrication and cooling oil gas lubricating system on shaft bearing；
Further, force plate/platform is six-dimensional force cell sensor, exportable three axial forces and three torsion force signals, real
When obtain the interaction force between the upper and lower surface of force plate/platform；
Further, shaft bearing outer ring is equipped with temperature sensor, and temperature sensor can monitor in weighted platform in real time
The temperature of bearing；
Further, described force snesor, temperature sensor signal end be connected with data acquisition and display device.
The installation of heavily loaded high-speed electric main shaft on-line loaded platform described in the present invention and application method：
1) mounting platform mounting base ensures that stage+module seat upper surface is parallel with electro spindle axis；
2) adjustment of load tablet is mounted on stage+module seat；
3) force plate/platform is mounted on adjustment of load tablet；
4) handle of a knife interface and connection shaft are fastenedly connected with screw, action balance of going forward side by side adjustment；
5) by the 4) assembly that step obtains and accuracy test frame, temperature sensor, preloading spring, oil gas lubricating system,
Shaft bearing is installed on shaft shell；
6) electro spindle posture is adjusted, connects and is tested electro spindle and weighted platform；
7) by the 5) assembly that step obtains be installed on force plate/platform, and be adjusted force plate/platform when making horizontal positioned
Load reading be only the 5) assembly obtained by step gravity value, to ensure that weighted platform and tested electro spindle initially install shape
There is no loads under state.
When work, adjusting radial load adjusting apparatus or axial load adjusting apparatus makes adjustment of load tablet and stage+module
Displacement is generated between seat, which is converted into load and passes through force plate/platform, shell, shaft bearing, connection shaft, electro spindle handle of a knife
Interface is transmitted on tested electro spindle；The load that platform is loaded, which by force plate/platform is converted into electric signal and is transmitted to data, adopts
Collection is shown with display device；The DIE Temperature of weighted platform is transmitted to data acquisition and display device by temperature sensor
In, and temperature pre-warning is provided and is shown.
Present invention uses conventional contact methods to heavily loaded high-speed electric main shaft on-line loaded.By adjusting can slide relatively
Relative displacement between the stage+module seat and adjustment of load tablet of shifting changes direction and the size of loaded value.With it is existing online
Weighted platform is compared, and has used level pressure firmly beforehand means, oil gas lubricating system and temperature pre-warning measure to ensure that weighted platform exists
Stablize under the operating mode of heavily loaded high speed, safe operation, and loaded load data can be directly provided.
Description of the drawings
Fig. 1 is the heavily loaded high-speed electric main shaft weighted platform structural schematic diagram of the present invention；
Fig. 2 is adjustment of load platform structure schematic diagram.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with attached drawing to the present invention into
Row is further described.
As depicted in figs. 1 and 2, the heavily loaded high-speed electric main shaft weighted platform of the present invention, component parts include：Electro spindle handle of a knife
Interface 2, shaft accuracy test frame 3, bearing temperature sensor 4, level pressure preloading spring 5, bearing oil gas lubricating system 6, shaft axis
It holds 7, connects shaft 8, shaft shell 9, data acquisition and display device 10, force plate/platform 11, adjustment of load tablet 12 is axial negative
Carry adjusting apparatus 13, adjustment of load tablet holddown spring 14, stage+module seat 15, radial load adjusting apparatus 16.
As shown in Figure 1, weighted platform and tested electro spindle 1 are by electro spindle handle of a knife interface 2 and connect shaft 8 and realize tightly
It is solidly connected；Connection shaft 8 is connect with shaft shell 9 by shaft bearing 7；Shaft bearing 7 is high speed steel bearings, using leaning against
Mounting means is carried on the back, shaft bearing 7 realizes that level pressure pre-tightens by level pressure preloading spring 5；Simultaneously countershaft bearing 7 is provided with to be moistened
Sliding and cooling oil gas lubricating system 6,7 outer ring of shaft bearing is mounted with temperature sensor 4；Shaft shell 9 is bolted
In on the upper surface of force plate/platform 11,11 lower surface of force plate/platform is secured by bolts on adjustment of load tablet 12.
As shown in Fig. 2, adjustment of load tablet 12 is placed on stage+module seat 15, pass through adjustment of load tablet holddown spring
14 are compacted the contact surface of adjustment of load platform and platform mounting base, and four radial load adjusting apparatus 16 and four axial directions are negative
It carries adjusting apparatus 13 and is separately mounted to four orientation in 12 same level of adjustment of load tablet, protected by load regulator
Hold adjustment of load tablet 12 with stage+module seat 15 being fastenedly connected in the horizontal plane.Described load regulator can be negative
Carry adjusting screw.
In use, mounting platform mounting base 15,15 upper surfaces of guarantee stage+module seat are parallel with 1 axis of electro spindle first；
Adjustment of load tablet 12 is mounted on stage+module seat 15 by second step；Force plate/platform 11 is mounted on adjustment of load by third step
On tablet 12；Handle of a knife interface 2 and connection shaft 8 are fastenedly connected by the 4th step with screw, action balance of going forward side by side adjustment；5th,
The assembly that 4th step obtains is pacified with accuracy test frame 3, temperature sensor 4, preloading spring 5, oil gas lubricating system 6, bearing 7
It is attached on shaft shell 9；6th step adjusts electro spindle posture, tested electro spindle 1 is connect with weighted platform；7th step, by
The assembly that five steps obtain is installed on force plate/platform, and being adjusted makes the reading of force plate/platform 11 be only dress obtained by the 5th step
The gravity value of ligand, to ensure weighted platform, there is no loads under 1 initial mounting state of tested electro spindle.
When work, make adjustment of load tablet 12 by adjusting radial load adjusting apparatus 16 and axial load adjusting apparatus 13
There is displacement, which is converted into load and passes through force plate/platform 11, shell 9, shaft bearing 7, connection shaft 8, electro spindle handle of a knife
Interface 2 is transmitted on tested electro spindle 1；The load that platform is loaded is obtained by force plate/platform 11；When weighted platform is run,
Oil gas lubricating system 6 is run, and bearing 7 is lubricated and is cooled down；After 7 outer ring temperature of bearing is monitored by temperature sensor 4
It is transmitted in data acquisition and display device 10 and is shown, when the excessively high or absolute temperature of absolute temperature liter is excessively high, data
Acquisition will be prompted to that test need to be stopped ensureing weighted platform and tested electro spindle safety with display device.
Claims (5)
1. a kind of heavy duty high-speed electric main shaft on-line loaded platform, including electro spindle handle of a knife interface (2), accuracy test frame (3), temperature
Sensor (4), level pressure preloading spring (5), bearing oil gas lubricating system (6), shaft bearing (7), connection shaft (8), outside shaft
Shell (9), data acquisition and display device (10), force plate/platform (11), adjustment of load tablet (12), axial load adjusting apparatus
(13), adjustment of load tablet holddown spring (14), stage+module seat (15), radial load adjusting apparatus (16)；
It is characterized in that：Electro spindle handle of a knife interface (2) and connection shaft (8) are fastenedly connected with electro spindle；It connects shaft (8) and turns
Shaft housing (9) is connected by shaft bearing (7)；Shaft bearing (7) uses Back-to-back installation, is arranged in shaft bearing (7)
There is level pressure preloading spring (5)；
Further, the oil gas lubricating system (6) of lubrication and cooling is installed on shaft bearing (7)；
Further, force plate/platform is the six-dimensional force cell sensor of exportable three axial forces and three torsion force signals；
Further, temperature sensor (4) is installed in shaft bearing outer ring；
Further, described force plate/platform, temperature sensor signal end and data show and be connected with harvester (10)；
Shaft shell (9) is fixed on the upper mounting plate of force plate/platform (11), and force plate/platform (11) lower platform is fixed on adjustment of load
On tablet (12)；Adjustment of load tablet (12) is placed on stage+module seat (15), passes through adjustment of load tablet holddown spring
(14) connect and be compacted the contact surface of two platforms, radial load adjusting apparatus (16) and axial load adjusting apparatus (13) point
It is not placed in four orientation of adjustment of load tablet same level.
2. according to the heavily loaded high-speed electric main shaft on-line loaded platform described in claim 1, which is characterized in that described radial load
Adjusting apparatus and axial load adjusting apparatus have a pair or more respectively.
3. according to the heavily loaded high-speed electric main shaft on-line loaded platform described in claim 1, which is characterized in that described radial load
Adjusting apparatus and axial load adjusting apparatus are adjustment of load screws.
4. a kind of heavy duty high-speed electric main shaft on-line loaded platform, including electro spindle handle of a knife interface (2), accuracy test frame (3), temperature
Sensor (4), level pressure preloading spring (5), bearing oil gas lubricating system (6), shaft bearing (7), connection shaft (8), outside shaft
Shell (9), data acquisition and display device (10), force plate/platform (11), adjustment of load tablet (12), axial load adjusting apparatus
(13), adjustment of load tablet holddown spring (14), stage+module seat (15), radial load adjusting apparatus (16)；Its on-line loaded
The installation of platform and application method are：
1) mounting platform mounting base ensures that stage+module seat upper surface is parallel with electro spindle axis；
2) adjustment of load tablet is mounted on stage+module seat；
3) force plate/platform is mounted on adjustment of load tablet；
4) handle of a knife interface and connection shaft are fastenedly connected with screw, action balance of going forward side by side adjustment；
5) by the 4) assembly that step obtains and accuracy test frame, temperature sensor, preloading spring, oil gas lubricating system, shaft
Bearing is installed on shell；
6) electro spindle posture is adjusted, connects and is tested electro spindle and weighted platform；
7) by the 5) assembly that step obtains be installed on force plate/platform, and be adjusted force plate/platform when making horizontal positioned and export
Reading be only the 5) assembly obtained by step gravity value, with ensure weighted platform under tested electro spindle initial mounting state
There is no loads.
5. the installation according to the on-line loaded platform described in claim 4 and application method, which is characterized in that by adjusting radial direction
Load regulator and axial load adjusting apparatus make adjustment of load tablet displacement occur, which is converted into load and passes through dynamometry
Platform, shell, shaft bearing, connection shaft, electro spindle handle of a knife interface are transmitted on tested electro spindle；Platform is loaded negative
Load is converted by force plate/platform and is shown in data acquisition and display device；The DIE Temperature of weighted platform passes through temperature sensing
Device is transmitted in data acquisition and display device, and is provided temperature pre-warning and shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218556.2A CN106181575B (en) | 2015-04-29 | A kind of heavy duty high-speed electric main shaft on-line loaded platform and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218556.2A CN106181575B (en) | 2015-04-29 | A kind of heavy duty high-speed electric main shaft on-line loaded platform and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106181575A CN106181575A (en) | 2016-12-07 |
| CN106181575B true CN106181575B (en) | 2018-08-31 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975659A (en) * | 2010-08-27 | 2011-02-16 | 洛阳轴研科技股份有限公司 | High-speed dynamic simulation test method for electric mainshaft bearing |
| JP2011167799A (en) * | 2010-02-18 | 2011-09-01 | Ntn Corp | Main spindle device |
| CN102778345A (en) * | 2012-02-10 | 2012-11-14 | 青海华鼎实业股份有限公司 | Test device for simulating loading of main shaft of working condition |
| CN102866006A (en) * | 2012-09-19 | 2013-01-09 | 西安交通大学 | Strong-generality comprehensive experiment table for testing dynamic and static properties of spindle system |
| CN103115774A (en) * | 2013-01-21 | 2013-05-22 | 中国航天科技集团公司第五研究院第五一〇研究所 | Axial and radial combined loading bearing test device |
| CN103674504A (en) * | 2012-08-31 | 2014-03-26 | 沈阳机床(集团)有限责任公司 | Main shaft performance testing platform |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011167799A (en) * | 2010-02-18 | 2011-09-01 | Ntn Corp | Main spindle device |
| CN101975659A (en) * | 2010-08-27 | 2011-02-16 | 洛阳轴研科技股份有限公司 | High-speed dynamic simulation test method for electric mainshaft bearing |
| CN102778345A (en) * | 2012-02-10 | 2012-11-14 | 青海华鼎实业股份有限公司 | Test device for simulating loading of main shaft of working condition |
| CN103674504A (en) * | 2012-08-31 | 2014-03-26 | 沈阳机床(集团)有限责任公司 | Main shaft performance testing platform |
| CN102866006A (en) * | 2012-09-19 | 2013-01-09 | 西安交通大学 | Strong-generality comprehensive experiment table for testing dynamic and static properties of spindle system |
| CN103115774A (en) * | 2013-01-21 | 2013-05-22 | 中国航天科技集团公司第五研究院第五一〇研究所 | Axial and radial combined loading bearing test device |
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